A Technical Note on the Application of Interpolation Method on Modeling of 3D Surface Rock Layer

Table 2

Comparison of the 3 interpolation methods.

Borehole number	Location		Interpolation method	Number of borehole for calculation	Elevation of boundary between soil layer and rock layer (m)
	X	Y			Actual	Predicted
B11	470.55	118.36	Triangulation	B05, B07, B08	−5.9	−5.97
			Inverse distance weighting	All		−12.28
			BP neural network	All		−5.9
			Triangulation	B05, B06, B11		−11.47
B12	262.15	146.36	Inverse distance weighting	All	−10.3	−11.23
			BP neural network	All		−10.3